[Bug c++/46220] [4.3/4.4/4.5/4.6 Regression] Error: invalid covariant return type generated for incomplete class type and different qualifer

[redi at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46220

--- Comment #3 from Jonathan Wakely <redi at gcc dot gnu.org> 2010-10-29 
00:50:53 UTC ---
However p6 says

If the return type of D::f differs from the return type of B::f, the class type
in the return type of D::f shall be complete at the point of declaration of
D::f or shall be the class type D.

In this case the class type in the return of Bar::getBaz is neither complete,
nor Bar.